Thank you everyone for so many great ideas for roads to ride, but I just couldn't use your knowledge to plan my routes without getting them up on a single map first - so that's what I have done (I probably missed a few along the way/couldn't find them!). Anyway, here's a map of your routes:

Staff Member

Now that was a very neat trick - well done! Getting a Google Map to display on the forums has been a real challenge, so your solution to that is an excellent compromise... I had NO idea you could achieve it that way! I've actually spent hours and hours trying to find a workable Xenforo add-on app...

Thoed Thai is my favourite out of the way traditional "back water" town in North Thailand.
The ex home of Khun Sa the infamous opium warlord / Shan freedom fighter.
Featured on GTR herePrince of Death Road Trip-Khun Sa Memorial

Great stuff.
I did that loop about a month ago, in reverse direction. Yes, cracking roads and no traffic.
We came in on 1340 from Chai Prakarn via Sinchai to Arunothai... another marvellous road with great views looking down and east across Chai Prakarn valley.
If you have time going west, at Wiang Heang, you can extend the loop by taking the 50klm dirt road southwest to Pai, then back east on 1095.